software-center crashed with AttributeError in version(): 'AppDetailsDebFile' object has no attribute '_deb'

Thank you for taking the time to report this bug and helping to make Ubuntu better. Please answer these questions:
1. Is this reproducible?
2. If so, what specific steps should we take to recreate this bug? Be as detailed as possible.
This will help us to find and resolve the problem.

Many thanks!

Changed to High and ca-escalated because of 112 crashes on errors.ubunut.com on 2-July-2012

This bug was fixed in the package software-center - 5.3.5

---------------
software-center (5.3.5) quantal; urgency=low

  [ Michael Vogt ]
  * lp:~mvo/software-center/hopefully-fix-lp1008229:
    - fix crash that can happen if there is an error while
      opening a deb file (LP: #1008229)
  * lp:~mvo/software-center/fix-lp1023777:
    - initialize the 'click_url' attribute to fix a crash when
      clicking on the default 'featured' exhibit (LP: #1023777)
  * merge in the 5.2.5 fixes from stable

  [ Gary Lasker ]
  * lp:~gary-lasker/software-center/fix-lp1023336:
   - fix spelling error in the hardware requirements detection
     message for an attached mouse (LP: #1023336)
 -- Michael Vogt <email address hidden> Fri, 20 Jul 2012 08:19:51 +0200

Reverting the precise task to In Porogress, Fix Commited is for packages that are in the -proposed pocket, this package is still in the Unapproved queue.

Hello Aroiu, or anyone else affected,

Accepted software-center into precise-proposed. The package will build now and be available at http://launchpad.net/ubuntu/+source/software-center/5.2.5 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please change the bug tag from verification-needed to verification-done. If it does not, change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

I have verified that software-center version 5.2.5 in precise-proposed fixes this bug per the test case given in the description.

Thanks!

This bug was fixed in the package software-center - 5.2.5

---------------
software-center (5.2.5) precise-proposed; urgency=low

  [ Michael Vogt ]
  * lp:~mvo/software-center/fix-lp1009039:
    - fix treeview selection background (LP: #1009039)
  * lp:~mvo/software-center/fix-lp1011522:
    - fix bug where clicking on "Reinstall previous purchases" twice
      shows endless spinner (LP: #1011522)
  * lp:~mvo/software-center/click_url:
    - adds support for a "click_url" from the exhibits banner to
      support banners for things like the humble-bundle where we
      don't have packages but URLs (LP: #1020205)
  * lp:~mvo/software-center/hopefully-fix-lp1008229:
    - fix crash that can happen if there is an error while
      opening a deb file (LP: #1008229)
  * lp:~mvo/software-center/lp1026494:
    - typo fix in the hw description code (LP: #1026494)

  [ Gary Lasker ]
  * lp:~gary-lasker/software-center/unity-launcher-integration-fixes:
    - fix bug where for-purchase items are not being added to the Unity
      launcher (LP: #925014)
    - fix bug where the Unity launcher item for an application incorrectly
      points to its app-install-data desktop file rather than its installed
      desktop file (LP: #999427)
    - fix bug where an application's icon remains in the Unity launcher after
      the corresponding application has been uninstalled (LP: #981488)
    - fix bug where the Unity launcher fails to auto-hide after installation
      of a for-purchase item (LP: #1002440)
    - fix bug where items in the "Independent" section are not being added
      to the Unity launcher (LP: #1012877)
  * lp:~gary-lasker/software-center/tech-items-to-launcher-fix-lp1006483:
    - don't add an item to the launcher if its desktop file specifies
      NoDisplay=true (LP: #1006483)
  * lp:~gary-lasker/software-center/launcher-integration-unit-tests:
   - additional unit tests to round out the suite for the Unity
     launcher integration feature
  * lp:~gary-lasker/software-center/fix-lp969907-for-5.2:
    - fix race condition in _app_activated_cb() (LP: #969907)
 -- Michael Vogt <email address hidden> Mon, 23 Jul 2012 16:38:04 +0200

The verification of this Stable Release Update has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regresssions.